An apple is dropped out of a 12 meter-high tree. How fast will the Apple be moving right before it hits the ground

The charges for four ions are sodium (Na) + 1, calcium (Ca) + 2, fluorine (F) - 1, and sulfur (S) - 2. Which would be an ionic bond that could form from any of these ions? NaCa2 Na2S CaF FS

Which of the following is likely the best electrical insulator

Is it possible to have motion in the absence of a net force?

The more classification levels that two organisms share, a. the closer together on Earth they live. b. the easier it is to tell them apart. c. the more characteristics they have in common. d. the more distantly related they are.

Which of these is a sulfate? A - gypsum B - silver C - garnet D - beryl

A roller coaster track is a good example of the law of conservation of energy. Use this law to explain these facts about a roller coaster track. a. The largest hill for a roller coaster track is the first hill on the track.

Which statement about the spectrum of light that emerges from a prism is true? A. High-frequency colors bend more than low-frequency colors. B. High-frequency colors bend less than low-frequency colors. C.

What kind of process can create "rogue" waves? a. Constructive interference c. Refraction b. Destructive interference d. Standing waves

What are constellations? 1. Apparent groupings of stars and planets visible on a given evening 2. Groups of galaxies gravitationally bound and close together in the sky 3.

What is pitch? give an example of a high pitch sound a low pitch sound